The telephone lines are not connected in 10% cases if the attempt is made during 10.00...
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The telephone lines are not connected in 10% cases if the attempt is made during 10.00 am to 11.00 am. One day 12 telephone numbers are selected at random and tried to connect them during 10.00 am to 11.00 am. Find the probability that, out of 12 telephones- [5.0] a) all are connected properly, b) two are not connected, c) at least 2 are not connected, d) find more than 4 are not connected out of 15 telephone numbers, e) if the experiment is repeated by 25 persons, in how many cases connection is made in all telephones? The telephone lines are not connected in 10% cases if the attempt is made during 10.00 am to 11.00 am. One day 12 telephone numbers are selected at random and tried to connect them during 10.00 am to 11.00 am. Find the probability that, out of 12 telephones- [5.0] a) all are connected properly, b) two are not connected, c) at least 2 are not connected, d) find more than 4 are not connected out of 15 telephone numbers, e) if the experiment is repeated by 25 persons, in how many cases connection is made in all telephones?
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a For all 12 telephones to be connected properly the probability for each telephone to be connected ... View the full answer
Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
Posted Date:
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